Remove RestartDatum bug workaround in tests

[ysimonson]

We currently have a workaround in tests due to a backwards-compatibility issue that should be removed when the issue is fixed: pachyderm/pachyderm#5123

python-pachyderm/tests/test_pps.py

Lines 91 to 96 in bbf2d25

	# Skip this check in >=1.11.0, due to a bug:
	# https://github.com/pachyderm/pachyderm/issues/5123
	# TODO: remove this check once the bug is fixed
	if util.test_pachyderm_version() < (1, 11, 0):
	# Just ensure this doesn't raise an exception
	sandbox.client.restart_datum(job_id)